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Displacement Reaction

Class 10 Science के इस tag से जुड़े questions। हर question के साथ chapter, topic, level और difficulty दी गई है।

ScienceMetal A displaces metal B and metal B displaces metal C from their salt solutions. Which is least reactive?Class 10Metals and Non-metalsReactivity seriesLevel 5Medium ScienceZinc displaces copper from an aqueous solution of its salt, but copper does not displace zinc from an aqueous solution of its salt. What is the most correct conclusion?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 5Hard ScienceWhen an iron nail is placed in copper sulphate solution, which substance is deposited on the surface of the nail?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 5Hard ScienceWhich of the following reaction is an example of both a displacement reaction and a redox reaction?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 4Hard ScienceWhich of the following reaction is both a displacement reaction and a redox reaction?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 4Medium ScienceWhen a clean iron nail is dipped in a blue copper sulphate solution, which observation confirms that a displacement reaction has occurred?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 4Hard ScienceA student places a clean zinc strip in a blue copper sulphate solution. After some time, a reddish-brown coating forms on the strip and the blue colour of the solution fades. Which is the correct explanation of this observation?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 4Hard ScienceIn the reaction (2 ext{Al}+3 ext{CuCl}_2 ightarrow2 ext{AlCl}_3+3 ext{Cu}), a student says that 1 mol of aluminium will produce 1 mol of copper. Which statement correctly corrects the error?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 4Hard ScienceWhich of the following equations represents a displacement reaction in which oxidation and reduction occur simultaneously?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 4Hard ScienceMetal A displaces metal B from a solution of its salt, and metal B displaces metal C from a solution of its salt. Which metal is the least reactive?Class 10Chemical Substances – Nature and BehaviourMetals and Non-metalsLevel 4Medium ScienceWhat is the microscopic reason for fading of blue colour of copper sulphate solution?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 4Hard ScienceWhy does a reddish-brown coating form on an iron nail and the solution turn green when the nail is placed in copper sulphate solution?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 4Hard ScienceWhich of the following reactions is both a displacement reaction and a redox reaction?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 3Hard ScienceWhen a clean iron nail is placed in a blue \(CuSO_4\) solution, a reddish-brown coating forms on the nail. Which conclusion correctly explains this change?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 3Hard ScienceZinc displaces copper from copper sulphate solution, but copper does not displace zinc from zinc sulphate solution. What is the correct conclusion?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 3Hard ScienceMetal A displaces metal B from a solution of its salt, and metal B displaces metal C from a solution of its salt. What is the correct order of reactivity of the metals?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 3Medium ScienceWhen an iron nail is placed in copper sulphate solution, a decrease in the concentration of which ion causes the blue colour of the solution to fade?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 3Hard ScienceWhen an iron nail is placed in a blue copper sulphate solution, a reddish-brown copper coating forms on the nail and the solution turns pale green. What causes both changes?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 3Hard ScienceWhen an iron nail is placed in a blue copper sulphate solution, which observation identifies that a displacement reaction has occurred?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 2Medium ScienceWhich of the following reaction is both a combination reaction and an oxidation-reduction reaction?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 2Hard